1909.] NATURAL SCIENCES OF PHILADELPHIA. 45 



= Collum (Knoch, 1801). 



= Corselet (Strauss-Diirkheim, '28). 



= Collier (Chabrier, '20). 



= Manitruncus (Kirby, '28). 



Verhoeff's, '04, " proterothorax " is the prothorax plus the cervicum. 

 mesothorax (") — Mesothorax (Nitzsch, '18). 

 Metathorax ("') — Metathorax (Nitzsch, '18). 



The meso- plus metathorax = Knoch's, 1801, pectus. 



= Chabrier's, '20, tronc alifere. 



= Kirby's, '28, ahtruncus. 



= Strauss-Durkheim's, '28, "thorax." 



Verhoeff's, '04, "deuterothorax" = the mesothorax plus the metathorax 

 and intersegmentalia. 



The Segment. 



Tergum (TV) — Tergum (Audouin, '24). 

 = Notum (Burmeister, '32). 



Escherisch's ('06) "mesonotum" (which, according to Burmeister, '32, 

 means the notum or tergum of the mesothorax) is the mesothoracic 

 scutum. 

 Pleuron (PI) — Pleuron (Amans, '85). 

 = Pleura (Audouin, '24). 

 Kirby's, '28, "pleura" is the epimeron. 

 Burmeister's, '32, "pleura" is the episternum. 

 Sternum (S) — Sternum (Audouin, '24). 



The sternum of Comstock, '05, is the basisternum. That of Comstock, '02, 

 is the basi- plus furci-sternum, except in the cervical region, where it is 

 doubtless a portion of the praesternum. 



The Tergum. 

 (For example, that of the Mesothorax.) 



Pi^escutum (N'\) — Pr^escutum (Audouin, '32). 



(The other uses of the word praescutum are given under the heading Medi- 

 scutum.) 



= Proterophragma (Kleuker, '83). 



= Antedorsum (Amans, '85). In the Diptera, Amans', '85, and Petri's, 

 '99, antedorsum is the mediscutum. 

 Scutum (N 2 ") — Scutum (Audouin, '32). 



Voss', '04, scutum is the scutum plus the scutellum. The scutum of Ham- 

 mond, '81, Kiinkel, 75-'81, Brauer, '82, Lowne, '90-'92, Packard, '98, 

 Hewitt, '07, a. o., is the parapsidoscutum. 



= Dorsum (Amans, '85). 



(According to Audouin, '32, the term dorsum refers to the whole dorsal 

 surface of the insect.) 



In the Diptera, Amans', '85, and Petri's, '99, "dorsum" is the parapsido- 

 scutum. 

 Mediscutum (N" 2 a.) — Mediscutum (Crampton, '08). 



= The praescutum of Hammond, '81, Kiinkel, '75-'Sl, Brauer, '82 Lowne 

 '90-'92, Packard, '98, Hewitt, '07, a. o. 



= Escherisch's, '06, "mesonotum." 

 Parapsidoscutum (N" 2 b) — Parapsidoscutum (Crampton, '08). 



= In part the parapsides of MacLeay, '30. 



= The scutum of Hammond, '81, a. o. 



= Escherisch's, '06, proscutellum of the mesothorax (but according to 

 Audouin, '24, the term proscutellum refers to the prothoracic scutellum 

 alone). 



= Emerv's, '00, "paratteri" (i.e., parapsides?). 

 Pterygoda (Pt)— "Pterygodes" (Latreille, '20-'22). 



= Tegulte (Kirby, '28). 



